How to get a straight edge on subdivided object
..Trying to figure out what aspect of Crease is not doing what you would want it to ..




The pink square is not subdivided.
The grey square in the foreground is subdivided, all sides but the top one with a Crease value of 1. (Set on selected edges in the Transform panel, 'Mean Crease')
On the right, all sides of the grey square with a Crease of 1, wires displayed.


(no Edge Split modifier)